nounDate: 19021. an underlying layer of vegetation; specifically the vegetative layer and especially the trees and shrubs between the forest canopy and the ground cover
2. the plants that form the understory

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Understory — (or understorey) is the term for the area of a forest which grows in the shade of the emergent or forest canopy. Plants in the understory consist of a mixture of seedlings and saplings of canopy trees together with understory shrubs and herbs.… … Wikipedia

Kelp forest — Kelp forests are underwater areas with a high density of kelp. They are recognized as one of the most productive and dynamic ecosystems on Earth.Mann, K.H. 1973. Seaweeds: their productivity and strategy for growth. Science 182: 975 981.] Kelp… … Wikipedia

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